Description:
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To the best of my knowledge, I should be able to pass a raw XML document (fragment) into the SOAP payload (i.e., XML Schema's anyXml). SoapVar -can- do this, however, the constant that activates this functionality (XSD_ANYXML) is not exported by the extension, nor is it documented in the help.
Reproduce code:
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<?php
$location = "http://www.example.org/example_service";
$uri = "http://www.example.org/schemas/example_service";
$my_xml = "<array><item/><item/><item/></array>";
$client = new SoapClient(null, array('location' => $location, 'uri' => $uri);
$var = new SoapVar($my_xml, XSD_ANYXML);
$param = new SoapParam($var, "XMLData");
$client->AnyFunction($param);
?>
Expected result:
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The SOAP call should contain the non-escaped, literal text of $my_xml.
This behavior will occur if XSD_ANYXML is define()'d to 147. If you have netcat, you can set the $location value appropriately to point at a port (like http://localhost:1234) then set up netcat to listen on that port (nc -l -p 1234). This will show that the literal XML is, in fact, passed through as it should be.
Actual result:
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The script will blow up with an warning about XSD_ANYXML being undefined, followed by an error stating that it's an invalid value for SoapVar.
The problem is easily solved by registering the XSD_ANYXML #define as a PHP constant in the ext/soap/soap.c file. Naturally, adding this constant to the help files would be nice, too :).